Process for producing condensation products from phenols with formic aldehyde.



. separation and ANTON "WEINDEL,

or LEVERKUSEN}. COLOGNE, Guam ASSIG-NOR TO A CORPORATION OF GERMANY.

PROCESS FOR PR DUCING ooNnErIsA'rIoN rnonuc'rsf-raon rHENoLs wrrn Foams ALDEHYDE.

1,o39,s5s. specifi ati ns mj Patented Oct.1,1 912. No Drawing. Application flledlanuary 21,1911. Serial l vo. 608,907. l

To all whom-it may concem: y

Be it known that I, ANTON WEINDEL, doctor of philosophy, chemist, citizen, of the German Empire, residing. at Leverkusen,

near Cologne, Germany, have invented new.

and useful- Improvements in Processes for Producing Condensation .Products from Phenolswith Formic Aldehyde, of which the following is a specification.

In'the process of condensing phenolsand formaldehyde, salts, acids alkalis and other agents of condensation ave been recommended, but all of. the chemicals hitherto employed show the disadvantage that they tenaceously adhere to the mass of reaction and thus injuriouslyafiect the solubility and color of the final product. It has now been found that mono and dichlorhydrin, when used'as agent of condensation, arefreefrom this drawback and'that by the use of these chemicals the reaction not only proceeds smoothly and quietly, but that also a product 'i is obtained which is clear ,and transparent. This is due, to the fact thatmono-and dichlorhydrincan'be easily removed from the mass of.,reaction. by washing with warm water, or steam or by heating at ordinary pres: sureor at reduced pressure. But the mass of reaction is not even injuriously affected, if Without such a purification, the agents of conde'nsationremain in admixture with the final product. 1

In order to carry out my process practically Imay proceed 'as follows, the parts given'being bywei'ght.

Exam 1e 1: 100 parts of phenol and 100 artsof an aqueous solution of 'iiormaldeyde containing 4O percentv formadlehyde 10" parts of monochlorhydrin of the alpha modification are boiled until the of an oil is observed. The product of condensation thus obtained is then urified with warm water or steam or by eating at ordinary or, reduced. pressure."

This

tone, but insoluble in water and acids.

hyde containin condensation roduct takes tion 0 the condensatlon parts-of an. aqueous solution of formalde- 40 per cent. formaldehyde monoor dichlorhydrin are Example 2:, 100 parts of phenol and 100 and 10 parts 0 boiled during some hours until the separa-.

tion of the oil is practically completed. A thick liquid is obtained solidifying in the cold. It is insoluble solvents.

- Instead of phenol, homologues of phenols and analoous substances such as for ex nzaldehyde may be used. In-- ample or? stead of ormaldehyde, paraform or similar aldehyde substances such hyde, benzaldel1yde,etc., may be employed, I claim 1. Process for. the aldehyde condensation roducts which com prises intermixing a chlorhydrin with the aldehyde and phenol, andheating the resulting mixture until separation of the condensation products takes place. 2. Process for the production of phenolaldehyde condensation products which comthe usual organic as methylacetalde production of phenolprises intermixing a monochlorhydrin with I the the aldehyde and phenol, and heating the resultingmixture until separation o place.

Process or the production of condensation products of phenol and formaldeh de which comprises intermixing a chlorhy rin with the phenol and fo'rm-aldehy heatin' the resulting mixtureuntil separaroduct takes lace.

4. Process for the pro uction, ofcon ensation, products of phenol and formaldehyde, i; I which comprises intermixin -a mo1io-chlo'r- 5 formaldehyde,

hydrin with the phenol an and heating the resulting mixture until'sepa ration of j the condensation product ta place. 1 I In testimony whereof I have. hereunto set Witnesses: Y

a VdNNneuT,

de, and

9o: my hand in the presence of two subscribing I wltnesses. Y

an oil is obtained whichg'when heated ANTON wEI E'n- 1. 8, 

